JPS6360932B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an individual selective call receiver with display in the field of mobile radio.

Conventionally, this type of individual selective call receiver with display is
When a ring signal and subsequent information are received, an alert tone is generated, but when the alert tone is turned off by a switch, the display is also erased at the same time, so it is often impossible to fully see the information content. In order to display the overlooked information again on the visual display, several manual operations are required, which is extremely inconvenient. Furthermore, the specification of Japanese Patent Publication No. 55-2099 describes an individual selective calling receiver equipped with a timer function for operating a visual display circuit for a predetermined period of time at the same time as resetting the sound display circuit. The disadvantage is that the information content cannot be seen while the sound is ringing, and since the visible display time is set, if the visible display time is set short, long information content cannot be displayed, and the visible display time is lengthened. If set, it has the disadvantage that there will be a gap for short information.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an individual selection call receiver with a display that can separate the reset of the alert tone and the reset of the display, and eliminate the possibility of overlooking the display or forgetting to turn it off by optimizing the visual display time. It is in.

According to the present invention, an individual selective calling receiver equipped with a display function decodes and receives the received own calling signal and the following information signal, and displays the ringing sound of the calling signal and the content of the information signal, respectively. a first control means for starting the visual display at the same time; and a first control means for stopping only the audible display by pressing a reset switch, and restarting a timer for operating the visual display for a predetermined period of time by releasing the reset switch. There is obtained an individual selective call receiver with a display, characterized in that it is equipped with a second control means for starting.

Next, an embodiment of the individual selective call receiver with display according to the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the structure of an embodiment according to the present invention. In this diagram,
The radio signal received by antenna 1 is amplified and demodulated in receiver 2. This demodulated signal is converted into a rectangular wave signal by the waveform shaping circuit 3 and input to the decoder section 4. In the process of inputting this signal to the decoder section 4, when the preamble signal is detected, the battery saving operation is canceled, then the word synchronization code is detected, and then the operation shifts to detecting the calling number of the local station. When a detection number matching the content written in PROM5 is detected,
Outputs an alert signal immediately. At the same time, an information signal following the calling number is detected.
Among these, the detected Alert signal is amplified by the amplifier 6 and drives the speaker 7. The information signal is also sent to a display (Liquid Cristal Display) 8 to display the information content. Finally, when the end code is detected by the decoder section 4, the battery saving operation is resumed.

FIG. 2 is a block diagram showing a specific example of the configuration of the decoder section 4 in FIG. 1. In this example, the input port 4-1 inputs the rectangularly shaped demodulated signal from the waveform shaping circuit 3 and sends the output to the data bus 4-2. Output port 4-3 receives instructions from data bus 4-2,
Outputs an address designation signal for reading out the local calling number written in the PROM5. Input port 4-4 receives the contents of the above address read from PROM5, and connects data bus 4.
- Send to 2. Output port 4-5 is data bus 4-
Upon receiving the instruction from 2, an alert tone signal is given to the amplifier 6. Program counter 4-6 is
It operates upon receiving input from the data bus 4-2 and outputs an address for reading the program. The address of the program counter 4-6 is given to the program memory 4-7, and a program to be executed is read out of the instruction group stored therein and delivered to the control circuit 4-8. Control circuit 4-8
decodes the code to be executed and controls each block to execute the instructions. ALU
(Arithmetic and Logic Unit) 4-9 stores calculation results and exchanges data between memory, I/O ports, registers, etc. via data bus 4-2. The data memory 4-10 stores the contents of the information signal applied from the input port 4-1 to the data bus 4-2 following the call signal, and the contents are stored in the timer built in this data memory 4-10. for a predetermined time under the control of the LCD via the display control/driver 4-11.
8 and displayed. Reset switch 9
As shown in the figure, is connected between the input side of the input port 4-1 and, for example, ground, and the output port 4-1 is connected by pressing the reset switch 9.
The timer on the data memory 4-10 side is reset to erase only the alert tone, and the timer on the data memory 4-10 side is restarted by releasing the reset switch 9. Note that the counter 4-12 generates a timing signal to drive each element in the decoder section, and is supplied via the data bus 4-2.

Here, a few examples of how the embodiment operates will be described with reference to the time chart of FIG. 3 and the flow chart of FIG. 4. First, regarding the operation of the receiver when the power is turned on, looking at A, B, and C in Figure 3a, A indicates that after the power is turned on,
If the reset switch (MR) is not used, the alert tone (ALT) and display (DISP) will sound and be visible for 8 seconds (hereinafter the timer setting is 8 seconds), and then the operation will stop. However, this applies to receivers with alert tone auto-reset (AAR) operation. In the case of a receiver that does not have an alert tone auto-reset operation, operation will be as shown in (b). In this case, after turning on the power, only the alert tone will stop when the reset switch (MR) is pressed, and the display will stop due to display auto-reset (DAR) 8 seconds after the reset switch is released. In addition, if the reset switch (MR) is pressed within 8 seconds after the power is turned on for a receiver that has an alert tone auto-reset operation, the alert tone will stop at that point and the reset switch (MR) will be pressed.
The display will stop 8 seconds after you release the button. This action also looks like Lo. moreover,
After turning on the power, press the reset switch (MR) within 8 seconds, and then press the reset switch (MR).
The case where the reset switch (MR) is pressed again within 8 seconds after releasing the button is as shown in (c). In this case, the display stops when the reset switch is pressed for the second time.

The operation at the time of reception will be explained with reference to the time charts I, B and C of FIG. 3B and the flowchart of FIG. 4. First, 12 of the flowchart
When a calling signal is received at 13, an information signal following the calling number is detected at 13 and processed. Along with that,
An alert tone is generated at 14 and the content of the information signal is displayed on a visual display at 15. Furthermore, 1
6 starts an 8 second timer. 8 by 17
When seconds have elapsed, the process advances to 19 and the alert tone and display stop. This operation is shown in a time chart as shown in Fig. 3b. if,
If the reset button is pressed at 17 before 8 seconds have elapsed, the alert tone stops as at 20 and the timer stops counting as at 21. Then, at the same time as the reset button is released at 22, the 8 second timer is initialized again at 23 and starts counting. When 8 seconds have elapsed at 24, the display stops at 27, and the process returns to 11 to enter a standby state. A time chart of this operation is shown in FIG. 3b (b). Furthermore, if the reset button is pressed at 25 before 8 seconds have elapsed at 24, the timer will stop counting at 26, and at the same time the timer will stop counting at 26.
At 7, the display stops and the screen enters a standby state. A time chart of this operation is shown in Fig. 3b (c).

Further, when the reset button is pressed at 28 in the standby state, the contents of the newest message (memory 1) are displayed at 31. and,
As soon as the reset button is released at 32, the 8 second timer starts counting at 33. and,
After 8 seconds have elapsed in step 34, the display stops and the screen returns to the standby state. The time chart for this operation is shown in the 3rd page.
Shown in Figure c. If the reset button is pressed before 8 seconds have elapsed at 34, the timer stops counting at 37, returns to 29, and advances to 30. The memory contents are updated at 30 and the new memory contents are displayed.
A time chart of this operation is shown in FIG.

As is clear from the above description, according to the present invention, the reset of the alert tone and the reset of the display are made independent, the visual display starts at the same time as the alert tone sounds, and the alert tone is activated by pressing the reset switch. By turning off only the sound and releasing the reset switch, it is possible to activate the timer function and erase the visual display after a predetermined period of time. In other words, a very simple manual element is included in the conventional auto-reset function of the display operation, so that, for example, when you try to make a call while looking at the telephone number on the display, By keeping the reset switch pressed, the display can be continued, and the auto-reset function can prevent operational errors such as forgetting to turn off the display or forgetting to release a message. The effect is significant in that flexibility and reliability can be improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention, FIG. 2 is a block diagram showing a specific configuration example of the decoder section in FIG. 1, and FIGS. 3 a and b
and c are time charts for explaining the operations in the embodiment at power-on, reception, and standby state, respectively, and FIG. 4 is a flow chart for explaining the operations in the embodiment. In the figure, 1 is an antenna, 2 is a receiver, 3 is a waveform shaping circuit, 4 is a decoder section, 5 is a PROM,
6 is an amplifier, 7 is a speaker, 8 is a display (LCD), 9 is a reset switch, 4-1, 4-
4 is an input port, 4-2 is a data bus, 4-3,
4-5 is an output port, 4-6 is a program counter, 4-7 is a program memory, 4-8 is a control circuit, 4-9 is an ALU, 4-10 is a data memory,
4-11 is display controller/driver, 4-1
2 is a counter.

Claims (1)

[Scope of Claims] 1. In an individual selective calling receiver equipped with a display function, the received calling signal and the following information signal are decoded and received, and the sound display of the calling signal and the content of the information signal are respectively displayed. and a timer for stopping only the audible display by pressing a reset switch and operating the visual display for a predetermined period of time by releasing the reset switch. and second control means for restarting the individual selective calling receiver with display. 2. In the individual selective call receiver with display as set forth in claim 1, when in a reception standby state, the display of the content of the information signal already stored is started by pressing the reset switch. An individual selective call receiver with a display, characterized in that the timer is started in response to the visible display by releasing the reset switch.